usually iphones/smartphones take pictures with 2-3-4-5MByte which can fill your harddisk/webserver pretty fast.

It is wiser to shrink them down before upload. While under Windows i would recommend you http://www.irfanview.com/ Under Linux you can do that with ease 😀

apt-get install imagemagick; # install
mogrify -resize 40% *.jpg; # resize all jpg by 40%
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